Ten people who attended the 2013 World Supremacy Battleground hip-hop competition in Sydney last month have fallen sick with measles, but Northland could escape the disease outbreak.
One of the confirmed case of measles is in Auckland and the nine others are in Turangi and Taupo.
Ministry of Health acting deputy director of public health Dr Harriette Carr said health officials were working to identify people who may have been in contact with those affected.
"Measles can be a serious disease and is easily spread to someone who is not immunised, or who has not been exposed to measles previously," she said.
However, the coaches of top Northland hip-hop dancers Kani Krew, Annalise and Hayden Wood, of Whangarei, said yesterday they were unaware of any Northlanders competing in or attending the competition in Sydney on December 7-8.